______,Grease 10 x 1 1/2-inch pie plate.,Sprinkle ham, cheese and onions in plate.,Beat remaining ingredients until smooth, 15 seconds in blender on high or 1 minute with handbeater. Pour into plate.,Bake until golden brown and knife inserted in center comes out clean, 35 to 40 minutes.,Cool 5 minutes.,Makes 6 servings.